CN206174939U - Be applicable to small -size sidetracked hole intelligence layering water injection string - Google Patents
Be applicable to small -size sidetracked hole intelligence layering water injection string Download PDFInfo
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- CN206174939U CN206174939U CN201621017252.6U CN201621017252U CN206174939U CN 206174939 U CN206174939 U CN 206174939U CN 201621017252 U CN201621017252 U CN 201621017252U CN 206174939 U CN206174939 U CN 206174939U
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- Prior art keywords
- water injection
- string
- tubing string
- small size
- tubular column
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Abstract
The utility model discloses a be applicable to small -size sidetracked hole intelligence layering water injection string, including unit tubular column, safety joint, single current valve, the unit tubular column is equipped with a set ofly at least, and it includes packer, intelligent water injection mandrel, the lower extreme at the packer is installed to the intelligence water injection mandrel, be when a set of when the unit tubular column, and its upper end is continuous with safety joint, and the lower extreme is continuous with the single current valve, when the unit tubular column was more than two sets of, the unit tubular column of the top linked to each other with safety joint, and the unit tubular column of below links to each other with the single current valve. Functions such as water distribution, test can be accomplished one time to this tubular column to can follow ground remote controlling and change the injection allocation amount of each layer in the pit, improve blending efficiency and realize meticulous seperated layer water injection, satisfy small -size sidetracked hole's seperated layer water injection and allocate a difficult problem, the deblocking only need lift the tubular column, and is simple, practical, safe and reliable.
Description
Technical field
This utility model is related to a kind of oil recovery tubing string, more particularly to a kind of small size sidetracked hole that is applied to intelligently is layered note
Water pipe post.
Background technology
Jianghan Oil-field has 4in sleeve pipes (finger sleeve external diameter is external diameter 101.6mm, internal diameter 86mm) 26 mouthfuls of water injection well, due to set
Bore is little, is affected by tool sizes arrangement and conventionally test difficulty, current water filling mainly by the way of commingled water injection, with
Deeply developing for oil field, monolayer commingled water injection has been difficult to meet fine water filling demand, and water filling layer position interlayer contradiction is projected, shadow
Flood effectiveness is rung.Therefore, 4in sidetracked hole seperated layer water injections are solved the problems, such as, the water drive mining-employed reserves in oil field is improved, is become anxious and is waited to solve
Problem certainly.
Utility model content
Technical problem to be solved in the utility model is that the deficiency existed for above-mentioned prior art provides a kind of energy
Improve allotment efficiency and realize fine seperated layer water injection suitable for small size sidetracked hole intelligence separate layer water injection string.
The technical scheme that this utility model is adopted for：One kind is applied to small size sidetracked hole intelligence separate layer water injection string,
It is characterized in that：Including unit tubing string, safety joint, ball-and-seat, at least provided with one group, it includes packing to the unit tubing string
Device, intelligent watering device, the intelligent watering device is installed in the lower end of packer, when unit tubing string be one group when, its upper end with peace
Full joint is connected, and lower end is connected with ball-and-seat；When unit tubing string for it is more than two when, the unit tubing string of the top and safety joint
It is connected, the unit tubing string of bottom is connected with ball-and-seat.
By above-mentioned technical proposal, the packer is Y341 packers.
By above-mentioned technical proposal, the ball-and-seat includes the valve body with hollow valve pocket, the valve element in the valve pocket
And spring, the feed pathway and liquid outlet channel with valve pocket conducting is provided with the upper and lower side of valve body, the two ends of spring are against respectively valve
On core and valve body between feed pathway.
By above-mentioned technical proposal, the intelligent watering device includes main body, injection well downhole flow regulator in the top connection, injection well downhole flow regulator being sequentially connected
Lower main body, is provided with vivo eccentric mounting hole under injection well downhole flow regulator, and pressure transducer, micro speed reducing electricity are installed in eccentric mounting hole
Machine, adjustable water nozzle, in the upper end of eccentric mounting hole battery sleeve is connected with, and the battery sleeve is stretched on injection well downhole flow regulator in main body, in electricity
High-temperature battery group, control and measuring circuit plate, communication head are provided with the cylinder of pond.
By above-mentioned technical proposal, in the lower end of eccentric mounting hole filter mantle is connected with.
By above-mentioned technical proposal, the adjustable water nozzle is made up of bearing, rotating shaft, standing valve, regulating valve.
By above-mentioned technical proposal, it is external diameter 101.6mm, internal diameter 86mm that small size surveys the sleeve outer of drilling well.
By above-mentioned technical proposal, the safety joint is connected with unit tubing string by the way of left-hand thread.
Having the beneficial effect that acquired by this utility model：
1st, the tubing string can not be affected by casing size, hole deviation, well depth, can complete the functions such as water distribution, test for one time, and
Can be from each layer in ground remote control change down-hole with fluence, and allotment water nozzle size need not remove any downhole tool, improve allotment
Efficiency and fine seperated layer water injection is realized, meet a seperated layer water injection allotment difficult problem for small size sidetracked hole, deblocking only needs upper lifting pipe post, letter
It is single, practical, it is safe and reliable；
2nd, Y341 packer sets load is little, and bearing capacity is high, and its setting mechanism is set using two-diameter piston, reduces setting
Pressure, and anti-midway setting mechanism is designed with, prevent packer from setting halfway during entering under, because backwashing mechanism is designed with
Backwash passage, by casing annulus pressurization backwashing mechanism is opened, and can carry out the anti-flushing well of tubing string, be reduce further tubing string and is risen
Risk；
3rd, intelligent watering device is by receiving surface instruction, and can press command request adjustment water nozzle size, so as to change down-hole
Each layer with fluence, do not affected by casing size, hole deviation, well depth.
Description of the drawings
The structural representation of the embodiment that Fig. 1 is provided for this utility model.
Fig. 2 is the structural representation of intelligent watering device in this utility model.
Fig. 3 is the structure chart of ball-and-seat in this utility model.
Specific embodiment
Below in conjunction with the accompanying drawings the utility model is described in further detail.
As shown in figure 1, present embodiments providing one kind is applied to small size sidetracked hole intelligence separate layer water injection string, including list
First tubing string, safety joint 1, ball-and-seat 4, at least provided with one group, it includes packer 2, intelligent watering device 3 to the unit tubing string,
The intelligent watering device is installed in the lower end of packer 2, and when unit tubing string is one group, its upper end is connected with safety joint 1, under
End is connected with ball-and-seat 4；When unit tubing string is more than two, the unit tubing string of the top is connected with safety joint 1, bottom
Unit tubing string be connected with ball-and-seat 4.Fig. 1 is illustrated so that water filling layer is as two-layer as an example.Wherein, small size surveys the sleeve pipe of drilling well
External diameter is external diameter 101.6mm, internal diameter 86mm.
In the present embodiment, the packer 2 is using the Y341 packers that can be purchased in prior art, Y341 packer bags
Include packing element sealing mechanism, setting mechanism, retaining mechanism, solution sealing mechanism, anti-midway setting mechanism, backwashing mechanism, packing element sealer
Structure adopts special sealing member, and setting load is little, and bearing capacity is high.Setting mechanism is set using two-diameter piston, and reduction sets pressure
Power, and anti-midway setting mechanism is designed with, prevent packer from setting halfway during entering under.Because backwashing mechanism is designed with instead
Passage is washed, backwashing mechanism is opened by casing annulus pressurization, the anti-flushing well of tubing string can be carried out, reduced tubing string and act risk.
In the present embodiment, as shown in Fig. 2 the intelligent watering device 3 is including main in the top connection 5, injection well downhole flow regulator being sequentially connected
Main body 7 under body 6, injection well downhole flow regulator, the center of main body 7 is equipped with a main channel under main body 6 and injection well downhole flow regulator on the injection well downhole flow regulator, for rising
Lower instrument and pitching technological operation, in injection well downhole flow regulator lower body 7 eccentric mounting hole is provided with, and allotment is installed in eccentric mounting hole and is surveyed
Examination instrument.Allocation test instrument includes battery sleeve 8, pressure transducer 10, minitype speed reducing motor 12, adjustable water nozzle, allocation test instrument
Upper end is stretched on injection well downhole flow regulator in main body 6, and high-temperature battery group 9, control and measuring circuit plate, communication head are provided with battery sleeve.Institute
State adjustable water nozzle to be made up of bearing, rotating shaft 13, standing valve 14, regulating valve 15, the rotating shaft 13 is defeated with minitype speed reducing motor 12
Shaft is connected, and bearing is used to carry the load in rotating shaft 13.
As shown in figure 3, the ball-and-seat 4 includes the valve body 20 with hollow valve pocket, the valve element 19 in the valve pocket
With spring 18, in the upper and lower side of valve body 20 feed pathway 17 and liquid outlet channel 21 with valve pocket conducting, the two ends point of spring are provided with
It is not against on valve element 18 and valve body between feed pathway 17.Ball-and-seat 4 is in opening during entering under tubing string, makes oil pipe
It is inside and outside not form pressure reduction, it is ensured that to enter safety under tool tubular column and instrument, setting, in the injecting process all the time in closing
State.After reaching Opening pressure in casing annulus pressurization, ball-and-seat is opened, backwash well operations can be carried out, replaced out in well
Impurity and be conducive to the taking-up of tubing string.
To design attitude under tubing string, liquid is squeezed into from well head, fluid pressure promotes the setting piston stroking upward of Y341 packers,
The packing element for making Y341 packers 2 expands, while retaining mechanism locking, locks the packing element of radial deformation, completes packer setting.Again
Instruction is sent to intelligent watering device 3 from ground by ground controller, the water suction indicative curve of each layer is obtained.According to test number
Regulation water nozzle size is required according to geology injection allocation.When deblocking is needed, first from ground, control sends signal-off intelligent watering device 3
Feed pathway, then anti-flushing well opens the backwash passage and ball-and-seat 4 of Y341 packers 2, washes out impurity in tubing string, above carry
Tubing string, cuts off the deblocking pin of Y341 packers 2, reclaims packing element, completes deblocking process.The safety joint 1 of the present embodiment is adopted
Connected with the mode of left-hand thread, when tubing string rises to meet card, rotate forward oil pipe, realize giving up for bottom tubing string.
Claims (8)
- It is 1. a kind of to be applied to small size sidetracked hole intelligence separate layer water injection string, it is characterised in that：Connect including unit tubing string, safety Head, ball-and-seat, at least provided with one group, it includes packer, intelligent watering device to the unit tubing string, and the intelligent watering device is installed In the lower end of packer, when unit tubing string is one group, its upper end is connected with safety joint, and lower end is connected with ball-and-seat；Work as list When first tubing string is more than two, the unit tubing string of the top is connected with safety joint, unit tubing string and the ball-and-seat phase of bottom Even.
- 2. according to claim 1 suitable for small size sidetracked hole intelligence separate layer water injection string, it is characterised in that：The envelope Every device be Y341 packers.
- 3. according to claim 1 and 2 suitable for small size sidetracked hole intelligence separate layer water injection string, it is characterised in that：Institute Stating ball-and-seat includes the valve body with hollow valve pocket, the valve element and spring in the valve pocket, is provided with the upper and lower side of valve body With the feed pathway and liquid outlet channel of valve pocket conducting, the two ends of spring are against respectively on valve element and valve body between feed pathway.
- 4. according to claim 1 and 2 suitable for small size sidetracked hole intelligence separate layer water injection string, it is characterised in that：Institute Intelligent watering device is stated including main body under main body, injection well downhole flow regulator in the top connection, injection well downhole flow regulator being sequentially connected, is provided with vivo under injection well downhole flow regulator Eccentric mounting hole, is installed on pressure transducer, minitype speed reducing motor, adjustable water nozzle, in eccentric mounting hole in eccentric mounting hole Upper end be connected with battery sleeve, the battery sleeve is stretched on injection well downhole flow regulator in main body, be provided with battery sleeve high-temperature battery group, control And measuring circuit plate, communication head.
- 5. according to claim 4 suitable for small size sidetracked hole intelligence separate layer water injection string, it is characterised in that：In bias The lower end of installing hole is connected with filter mantle.
- 6. according to claim 4 suitable for small size sidetracked hole intelligence separate layer water injection string, it is characterised in that：It is described can Adjusting water faucet is made up of bearing, rotating shaft, standing valve, regulating valve.
- 7. according to claim 1 and 2 suitable for small size sidetracked hole intelligence separate layer water injection string, it is characterised in that：It is little It is external diameter 101.6mm, internal diameter 86mm that size surveys the sleeve outer of drilling well.
- 8. according to claim 1 and 2 suitable for small size sidetracked hole intelligence separate layer water injection string, it is characterised in that：Institute State safety joint to be connected by the way of left-hand thread with unit tubing string.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621017252.6U CN206174939U (en) | 2016-08-31 | 2016-08-31 | Be applicable to small -size sidetracked hole intelligence layering water injection string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621017252.6U CN206174939U (en) | 2016-08-31 | 2016-08-31 | Be applicable to small -size sidetracked hole intelligence layering water injection string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206174939U true CN206174939U (en) | 2017-05-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621017252.6U Active CN206174939U (en) | 2016-08-31 | 2016-08-31 | Be applicable to small -size sidetracked hole intelligence layering water injection string |
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|---|---|
| CN (1) | CN206174939U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11008830B2 (en) | 2018-10-15 | 2021-05-18 | Petrochina Company Limited | Stratified waterflooding apparatus |
| CN113803033A (en) * | 2021-09-18 | 2021-12-17 | 西安洛科电子科技股份有限公司 | Tubular column regulating and controlling device for intelligent separate layer water injection and use method thereof |
-
2016
- 2016-08-31 CN CN201621017252.6U patent/CN206174939U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11008830B2 (en) | 2018-10-15 | 2021-05-18 | Petrochina Company Limited | Stratified waterflooding apparatus |
| CN113803033A (en) * | 2021-09-18 | 2021-12-17 | 西安洛科电子科技股份有限公司 | Tubular column regulating and controlling device for intelligent separate layer water injection and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200108 Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee after: PETROLEUM ENGINEERING TECHNOLOGY RESEARCH INSTITUTE, JIANGHAN OILFIELD BRANCH OF CHINA PETROCHEMICAL CORPORATION Patentee after: China Petrochemical Co., Ltd. Address before: 430035 Hubei city of Wuhan province Gutian two Road No. 37 HSBC Nanniwan Avenue headquarters block fifth B Patentee before: PETROLEUM ENGINEERING TECHNOLOGY RESEARCH INSTITUTE, JIANGHAN OILFIELD BRANCH OF CHINA PETROCHEMICAL CORPORATION |
|
| TR01 | Transfer of patent right |